Program
Euro-thermostat is a programmable thermostat. It can automatically adjust the
room temperature to a comfortable level when you are at home, and lower it to
save energy when you go out or sleep. What you have to do is to program the
thermostat so that it knows when to raise the temperature. There are altogether
nine programs contained in the memory of the thermostat. Six of them are preset
in the factory and the remaining three are user changeable.
Manual override
If you want to change the temperature temporarily and do not want to alter the
programs you have set, you can simply touch a button to override the current
program.
INSTALLATION INSTRUCTIONS
Caution: Switch off the electric source before installing the thermostat. We re-
commend that the installation be performed by trained personnel.
Select a suitable location for the thermostat. The location of the thermostat can
greatly affect its performance. If it is located where air circulation cannot reach,
or exposed to direct sun light, it will not adjust the room temperature properly.
To ensure proper operation, the thermostat should be installed at an inside wall
with freely circulating air. Find a place where your family is usually occupied.
Avoid close proximity to heat generating appliances (e.g. TV, heater, refrigerator)
or exposed to direct sunlight. Do not install near a door where the thermostat
will suffer from vibration.
Wiring
Wiring terminals are at the back of the thermostat.
You can nd three terminals labeled COM, NO and NC.
It is a typical single-pole, double throw (SPDT) contact.
In most situations COM and NO are used.
Mounting the thermostat
Using the template provided, drill two ø6mm holes in the wall. Insert the wall
anchors and tighten the left screw with 3mm clearance. Fix the thermostat by
putting it over the screwhead and slide it rightward (note the keyhole-like opening
at the back of the thermostat). Tighten the remain screw to lock it in place.
Note: If the wall is made of wood, there is no need to use the wall anchors. Drill
two ø2.7mm holes instead of ø6mm.
USING YOUR NEW THERMOSTAT
The following procedures show how to operate the thermostat. It is recommended
that you follow the instructions and try to operate once before connecting it to
the heating or cooling system.
1, Start
The thermostat is operated by two LR6 alkaline batteries. Please remove the
front cover and install two new batteries.
When the batteries are installed, the thermostat should be operating and you
can see the LCD active. If the thermostat does not work properly, please check
the batteries for wrong polarities and press the reset button by using a ball-point
pen.
The LCD after start or reset:
Note:
i, Temperature may not be 20°C as the diagram shown and the Output-On in-
dicator may activate after a few seconds, depending on different situations.
ii, Do not use a pencil to push the reset button. The graphite residue of a pencil
can cause a short circuit and damage the thermostat.
2, Set day/time
To set day, press d. Similarly, press h to set hour and m to set minute.
Buttons used:
THERMOSTAT THERMO 091 – USER’S MANUAL
Your new thermostat will serve your family for years and signicantly save the
energy cost. The large multi-data liquid crystal display allows you to operate the
feature-rich design with a touch of a button. Before operating the thermostat, we
hope you can read this manual thoroughly.
BE FAMILIAR WITH YOUR THERMOSTAT
Appearance
There is a sliding door on the right half of the thermostat. If you open the door, you
can see some buttons. This door is removable for the replacement of batteries.
After opening the door, you can ip the door up or down to see the dip switch
and battery compartment.
Specication
Temperature measurement
range:
0---34.5°C (0.5°C step)
Temperature control range: 5---30°C (0.5°C step)
Temperature accuracy: +/-1°C
Clock accuracy: +/-70 seconds/month
Program: 6 preset, 3 user-dene
Switching span: 1°C or 2°C
Control mode: Heating or Cooling system
Minimum air-con. cycle time: 5 minutes
Switching: 230VAC 50Hz 5A resistive
Battery: 2 x LR6 alkaline battery
Dimensions: 154 x 80 x 30 mm (W x H x D)
Operation temperature: 0 --- 45°C
Storage temperature: -20 --- 60°C
Operating humidity: 5 --- 90% non-condensing
LCD
1 Day of the week Indicator
2 Time
3 Temperature
4 Program Number
5 Program Prole Indicator
6 Temperature Mode Indicator
7 Manual Override Indicator
8 Output-On Indicator – will be displayed and rotates if the ouput is on. It will
disappear if the output is off
9 Low Battery Indicator – will be displayed if the voltage of the batteries drop to
a certain level. Please change the batteries as soon as possible.
Temperature mode
You can see
☼
and
on both the buttons and the LCD.
☼
means comfort temperature and
means economy tem-
perature. These two temperatures are user changeable.
Furthermore, there is a xed defrost temperature (7°C)
indicated by
on the LCD. Throughout the operation of
the thermostat we will refer to them as comfort, economy
or defrost temperature instead of numeric values.
Example:
When start or after reset, the time is 00:00,
Sunday. To set the clock to current time (e.g.,
11:23, Tuesday), press d 2 times, h 11 times
and m 23 times.
Note: When you press and hold the keys for 2 seconds, the day/time will change
rapidly. Release when the desired setting comes.
3, View/Change temperature
Press Temp, and the thermostat enter View/Change temperature mode. The
LCD will show the setting of the current temperature mode (
☼
,
or
) which
will be ashing. Press
☼
or
to review or change the temperature. Press OK
to directly return to normal operation mode. Buttons used:
Example:
i, In normal mode…
ii, Press Temp. The setting of comfort tempera-
ture is ashing:
iii, To change, press
☼
. For example, to change
to 21.5°C, press
☼
5 times :
iv, To review economy temperature, press
:
v, You can press
key again to set the economy
temperature, or press OK to return to normal
operation mode.
Note:
i, The temperature setting range is 5° to
30°C.
ii, To lower the setting, enter View/Change temperature mode and press
☼
or
until it reaches 30°C and then the setting will return to 5°C. Continue to
pressing until the desired setting comes.
iii, The setting will change rapidly by pressing and holding the keys.
iv, Please note the temperature mode indicator. A
☼
means the comfort tempe-
rature is being viewed or changed. A
indicates economy temperature. If is
shown, it is defrost temperature. Defrost temperature is always at 7°C and is
not changeable.
v, It is not always necessary to use the OK key to return to normal operation
mode. After 15 seconds of no key pressed it will automatically return to normal
mode.
4, Manual Override
Press
☼
to select comfort temperature. Press
to select economy temperature.
The current temperature mode will be overrode until the next set point of the
program comes. Press OK to clear override. Buttons used :
Example:
i, In normal operation mode, press
to change
the current comfort setting to economy set-
ting:
The temperature is now set to economy mode.
This mode will be held until 23:00. (It is because
the program for the day is PROG 1. At 23:00 the
temperature will change from comfort to econo-
my, which matches the override setting.)
Time hold
Timer hold is an alternative to manual override. Press and hold
☼
(or
) key for
2 seconds, the hold time will appear. Press the key again to set the hold time.
Press OK to return to normal operation mode. The maximum can be set is 24
hours. In the hold period the temperature will not be affected by the program.
When timer hold is active, pressing the corresponding temperature mode key
(e.g.,
☼
if comfort mode is being held) will show the remaining hold time. The
remaining hold time can also be changed by using the same key. If another
temperature mode key is pressed (e.g., if comfort mode is being held), the timer
hold will be cleared.
Example:
i, To change the current setting from comfort to
economy for 5 hours, press and hold
for 2
seconds. The hold time will appear.
ii, The hold time is 1 hour. Press
4 times to
change the hold time to 5:
iii, Press OK or just leave no key pressed for 15
seconds, the thermostat will return to normal
mode
Note:
i, A ‘hand’ appears when the current temperature mode is being overrode.
ii, The setting will change rapidly by pressing and holding the keys.
5, View/Change Programs
Press Prog, the program of the current day is ready to be changed.
Press Prog again to advance to the next day and the program of that day will
be shown.
Press Prog# to change the program.
Program 6, 7 and 8 are user-dene programs. You can use
☼
or
to change
the distribution of comfort or economy temperature and h to review the setting.
Press OK to return to normal operation mode.
Buttons used:
There are altogether nine programs available, as
the diagram shown:
Program 0 is a special program. It will set the whole
day to defrost temperature (7°C). (If cooling mode
is selected, it will turn off the system. See Part 8,
Controlling a cooling system.)
Program 1,2, and 3 are some typical schedules of a
day. You can select them if you nd them suitable.
Program 4 sets the whole day to comfort temperature
while program 5 sets it to economy.
Program 6, 7 and 8 are user-dene programs. They
can be modied to suit your need.
NO
COM
NC
GB
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